Hi, since yesterday I have some freezes of approx. 20 seconds: the mouse pointer disappears or stays unmovable, the keyboard doesn't react. The rest of the computer seems to run normally (gkrellm shows movement, radio continues playing). This began yesterday. Today I updated the system and rebooted, same problem. As I don't know much about systems I typed "dmesg" and what fell into my eyes are the following messages: [ 1561.359808] perf: interrupt took too long (2502 > 2500), lowering kernel.perf_event_max_sample_rate to 79750 [ 2054.192856] perf: interrupt took too long (3446 > 3127), lowering kernel.perf_event_max_sample_rate to 58000 [ 3561.599163] perf: interrupt took too long (4317 > 4307), lowering kernel.perf_event_max_sample_rate to 46250 [ 7297.201895] perf: interrupt took too long (5417 > 5396), lowering kernel.perf_event_max_sample_rate to 36750 Where can I search, and for what? Any hints? Thank you! Daniel openSuse 15.1 KDE-Plasma 5.12.8 KDE-Fameworks: 5.55.0 Qt: 5.9.7 Kernel: 4.12.14-lp151.28.36-default Inten I7, 24GB Ram -- Daniel Bauer photographer Basel Málaga https://www.patreon.com/danielbauer https://www.daniel-bauer.com -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org